From 1d40d81b4b8dd50e4162b0b79b60d3312d2744e5 Mon Sep 17 00:00:00 2001
From: Sebastian Huber <sebastian.huber@embedded-brains.de>
Date: Tue, 3 May 2016 07:38:19 +0200
Subject: rtems: Remove task variables

Update #2494.
Update #2555.
---
 cpukit/rtems/src/tasks.c | 92 +++---------------------------------------------
 1 file changed, 5 insertions(+), 87 deletions(-)

(limited to 'cpukit/rtems/src/tasks.c')

diff --git a/cpukit/rtems/src/tasks.c b/cpukit/rtems/src/tasks.c
index f18e0ab3db..56b2455ad7 100644
--- a/cpukit/rtems/src/tasks.c
+++ b/cpukit/rtems/src/tasks.c
@@ -18,20 +18,13 @@
 #include "config.h"
 #endif
 
-#include <rtems/system.h>
 #include <rtems/config.h>
 #include <rtems/sysinit.h>
 #include <rtems/rtems/asrimpl.h>
 #include <rtems/rtems/eventimpl.h>
-#include <rtems/rtems/signalimpl.h>
-#include <rtems/rtems/status.h>
-#include <rtems/rtems/support.h>
-#include <rtems/rtems/modes.h>
 #include <rtems/rtems/tasksimpl.h>
-#include <rtems/score/stack.h>
 #include <rtems/score/threadimpl.h>
 #include <rtems/score/userextimpl.h>
-#include <rtems/score/wkspace.h>
 
 Thread_Information _RTEMS_tasks_Information;
 
@@ -91,87 +84,12 @@ static void _RTEMS_tasks_Delete_extension(
   _ASR_Destroy( &api->Signal );
 }
 
-static void _RTEMS_tasks_Terminate_extension(
-  Thread_Control *executing
-)
-{
-  /*
-   *  Free per task variable memory
-   *
-   *  Per Task Variables are only enabled in uniprocessor configurations.
-   */
-  #if !defined(RTEMS_SMP)
-    /*
-     * We know this is deprecated and don't want a warning on every BSP built.
-     */
-    #pragma GCC diagnostic push
-    #pragma GCC diagnostic ignored "-Wdeprecated-declarations"
-    do { 
-      rtems_task_variable_t *tvp, *next;
-
-      tvp = executing->task_variables;
-      executing->task_variables = NULL;
-      while (tvp) {
-	next = (rtems_task_variable_t *)tvp->next;
-	_RTEMS_Tasks_Invoke_task_variable_dtor( executing, tvp );
-	tvp = next;
-      }
-    } while (0);
-    #pragma GCC diagnostic pop
-  #endif
-}
-
-#if !defined(RTEMS_SMP)
-/*
- *  _RTEMS_tasks_Switch_extension
- *
- *  This extension routine is invoked at each context switch.
- *
- *  @note Since this only needs to address per-task variables, it is
- *        disabled entirely for SMP configurations.
- */
-static void _RTEMS_tasks_Switch_extension(
-  Thread_Control *executing,
-  Thread_Control *heir
-)
-{
-  rtems_task_variable_t *tvp;
-
-  /*
-   *  Per Task Variables are only enabled in uniprocessor configurations
-   */
-
-  tvp = executing->task_variables;
-  while (tvp) {
-    tvp->tval = *tvp->ptr;
-    *tvp->ptr = tvp->gval;
-    tvp = (rtems_task_variable_t *)tvp->next;
-  }
-
-  tvp = heir->task_variables;
-  while (tvp) {
-    tvp->gval = *tvp->ptr;
-    *tvp->ptr = tvp->tval;
-    tvp = (rtems_task_variable_t *)tvp->next;
-  }
-}
-#define RTEMS_TASKS_SWITCH_EXTENSION _RTEMS_tasks_Switch_extension
-#else 
-#define RTEMS_TASKS_SWITCH_EXTENSION NULL
-#endif
-
 User_extensions_Control _RTEMS_tasks_User_extensions = {
-  { NULL, NULL },
-  { { NULL, NULL }, RTEMS_TASKS_SWITCH_EXTENSION },
-  { _RTEMS_tasks_Create_extension,            /* create */
-    _RTEMS_tasks_Start_extension,             /* start */
-    _RTEMS_tasks_Start_extension,             /* restart */
-    _RTEMS_tasks_Delete_extension,            /* delete */
-    RTEMS_TASKS_SWITCH_EXTENSION,             /* switch */
-    NULL,                                     /* begin */
-    NULL,                                     /* exitted */
-    NULL,                                     /* fatal */
-    _RTEMS_tasks_Terminate_extension          /* terminate */
+  .Callouts = {
+    .thread_create  = _RTEMS_tasks_Create_extension,
+    .thread_start   = _RTEMS_tasks_Start_extension,
+    .thread_restart = _RTEMS_tasks_Start_extension,
+    .thread_delete  = _RTEMS_tasks_Delete_extension
   }
 };
 
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